A block cutting device

Abstract

The present invention relates to a block cutting device, belonging to the technical field of test block cutting equipment. The present invention includes a frame, a workbench, a cutting mechanism and a feeding mechanism. The workbench is installed on the frame in a front-back guiding and sliding manner. The feeding mechanism includes a pusher, a first transmission assembly, a second transmission assembly and a third transmission assembly. The pusher is installed on the workbench in a left-right movable manner. The first transmission assembly includes a rack and a gear. The rack is fixedly installed on the frame, and the gear is rotatably installed on the workbench. The second transmission assembly includes a nut and a screw rod. The nut is rotatably installed on the workbench with a fixed left-right position. The screw rod extends left and right and is helically installed in the nut. The screw rod is non-rotatably connected to the workbench and connected to the pusher. The third transmission assembly is connected between the nut and the gear, and a one-way assembly is connected between the third transmission assembly and the gear. The present invention enables the staff to realize the leftward feeding of the block only by pushing the workbench back and forth, with simple operation and higher dimensional accuracy of the obtained block specimens.

Description

Technical Field

[0001] The invention relates to the technical field of test block cutting equipment, in particular to a block cutting device. Background Art

[0002] Building materials testing is an important step in ensuring the quality, safety and suitability of building materials. These tests can help evaluate the physical properties, mechanical properties, durability and other characteristics of materials to ensure that they meet relevant building codes and standards.

[0003] Common building materials that need to be tested include concrete, blocks, steel, wood, etc. As an important material in building structures, the performance of blocks directly affects the safety and durability of buildings. It is very necessary to conduct a series of rigorous tests on blocks before use.

[0004] The main tests that need to be carried out on blocks include compressive strength test, flexural strength test, water absorption test, density test, etc. In these tests, the original larger blocks need to be cut into small specimens that meet the test size requirements.

[0005] In the prior art, blocks are generally cut by special block cutting equipment, such as a brick cutting machine disclosed in the patent with authorization announcement number CN210880315U, which includes a frame, a transmission mechanism, and a cutting mechanism. A workbench is arranged on the frame, and the cutting mechanism includes an upper rotating wheel, a lower rotating wheel, and a saw blade transmission-connected between the upper rotating wheel and the lower rotating wheel. The upper rotating wheel is arranged on the top of the frame and fixedly connected to the inside of the upper rotating wheel shield, and the lower rotating wheel is arranged below the working table at the bottom of the frame and fixedly connected to the inside of the lower rotating wheel shield. The brick cutting machine also includes an adjusting device capable of adjusting the tightness of the saw blade, a first saw blade clamp and a second saw blade clamp for limiting the vertical position of the saw blade; the driving motor is fixedly connected to the bottom of the frame, the output shaft of the driving motor is transmission-connected with a belt, the small rotating wheel is transmission-connected with the belt, the small rotating wheel is coaxially connected with the lower rotating wheel, and the small rotating wheel transmits power to the coaxially connected lower rotating wheel through the belt.

[0006] When the brick cutting machine is in use, the building blocks are placed on the workbench, and the workbench is pushed forward along the slide rail. The workbench drives the building blocks to move forward to the saw blade for cutting. The building blocks are cut from plate shape into strips one by one. After each cutting, the building blocks on the workbench need to be manually pushed to feed perpendicularly to the sliding direction of the workbench. In this way, the building blocks need to be manually pushed after each cutting, which is troublesome to operate. In addition, it is difficult to ensure the accuracy of the moving distance and moving direction of the building blocks by manually pushing the building blocks, and the problem of inaccurate size of the small sample obtained by cutting may occur. In severe cases, the inaccurate size of the sample may also affect the test results. Summary of the invention

[0007] The present invention provides a block cutting device to solve the technical problems in the prior art that in the use of the test block cutting device, manual pushing of the block is required for feeding before each cutting, which is troublesome to operate and difficult to ensure the accurate size of the prepared specimen.

[0008] To solve the above problems, the following technical solution is adopted for a block cutting device provided by the present invention:

[0009] A block cutting device includes a frame, a workbench and a cutting mechanism. The workbench is installed on the frame in a front-back guiding and sliding manner, and further includes a feeding mechanism. The feeding mechanism includes a pusher, a first transmission assembly, a second transmission assembly and a third transmission assembly;

[0010] The pusher is installed on the workbench in a left-right movable manner;

[0011] The first transmission assembly includes a rack and a gear. The rack extends front and back and is fixedly installed on the frame. The rack is located behind the cutting mechanism. The gear is rotatably installed on the workbench. The gear is used to mesh with the rack when the block after cutting moves to the rear of the cutting mechanism and then the workbench continues to move backward;

[0012] The second transmission assembly includes a nut and a screw rod. The nut is rotatably installed on the workbench with a fixed left-right position. The screw rod extends left and right and is helically inserted into the nut. The screw rod is connected to the workbench in a non-rotating manner and is connected to the pusher;

[0013] The third transmission assembly is connected between the nut and the gear. A one-way assembly is connected between the third transmission assembly and the gear. The one-way assembly enables the gear to drive the third transmission assembly to operate when moving backward and meshing with the rack, and enables the gear to disconnect the transmission with the third transmission assembly when moving forward and meshing with the rack, so that the gear can only drive the nut to rotate when moving backward, and then drive the screw rod and the pusher to move leftward to achieve feeding.

[0014] Adopting the above technical solution, during the process of cutting the block, after the block is cut once, after the block moves backward and exits the cutting mechanism, the workbench is continuously pulled backward, so that the gear meshes with the rack and rotates. The rotating gear drives the nut to rotate through the third transmission assembly. The nut drives the screw rod to move leftward. The screw rod drives the pusher to move leftward. The pusher pushes the block to move leftward to achieve the feeding of the block. The setting of the one-way assembly is used to prevent the reverse rotation of the gear when moving forward and driving the pusher to move rightward and retreat.

[0015] During the operation, the staff only needs to push the workbench forward and backward to feed the blocks, without having to push the blocks manually after each cutting, making the operation process simpler. At the same time, compared with manual feeding of blocks, feeding blocks through a series of transmission structures makes it easier to control the moving distance of the blocks. The blocks move more smoothly and more accurately in the process of feeding to the left, so that the size of the sample cut is more accurate, which is conducive to better testing.

[0016] The feeding of blocks is achieved by utilizing the relative movement of the workbench and the frame and by setting various groups of transmission components to push the pusher to move left. Compared with setting linear power elements such as cylinders and electric cylinders to drive the pusher to move left, there is no need for an external power supply, nor is there any need to set up too many auxiliary equipment such as pumps, oil tanks, oil pipes, etc. The structure is relatively simpler and more independent.

[0017] Furthermore, the one-way component includes an input shaft and a one-way bearing. The input shaft is transmission-connected to the power input end of the transmission component three, and the gear is sleeved on the outside of the input shaft through the one-way bearing.

[0018] By adopting the above technical solution, by setting a one-way bearing, the gear can drive the input shaft to rotate only when it moves backward and meshes with the rack to rotate, thereby transmitting power to the transmission component three, while the gear will not drive the input shaft to rotate when it moves forward and meshes with the rack to rotate, preventing the pusher from being pulled back. Using the one-way bearing and the input shaft as a one-way component has a simple structure and is easy to assemble.

[0019] Furthermore, the transmission component three includes a driving pulley, a driven pulley and a transmission belt. The driving pulley is the power input end of the transmission component three. The driving pulley is mounted on the outside of the input shaft, the driven pulley is connected to the nut for rotation, and the transmission belt is mounted on the outside of the driving pulley and the driven pulley.

[0020] With the above technical solution, the belt drive can absorb vibration and impact to a certain extent due to the use of flexible materials, thereby reducing wear on other parts of the system and reducing noise levels. The belt drive is suitable for long-distance transmission, thereby better realizing the transmission connection between the gear and the nut.

[0021] Furthermore, a stopper is installed on the workbench along the up and down guiding sliding direction, the stopper is located on the left side of the pusher, and a buffer drop slope is provided on the top of the stopper which is inclined downward from right to left. The stopper is used to move upward to be higher than the workbench when cutting the blocks and cooperate with the pusher to clamp the blocks, and move downward to be lower than the top surface of the workbench when the blocks are fed to the left. The stopper is also used to move upward to support the block sample after the center of gravity of the cut block sample passes the highest point of the stopper to the left, so that the block sample slides to the left side of the stopper along the buffer drop slope under its own weight.

[0022] With the above technical solution, by setting the material blocking member, during the cutting process, the material blocking member and the material pushing member jointly clamp the building block, making the position of the building block on the workbench more secure, the cutting process more stable, and effectively preventing the building block from deviating during cutting. The material blocking member is provided with a buffer and blanking inclined surface. When the center of gravity of the cut specimen moves to the left of the highest point of the material blocking member, the material blocking block rises, and the specimen slides down along the buffer and blanking inclined surface under its own weight, so as to move to the left of the material blocking member, which is equivalent to moving the cut specimen to the left, avoiding interference with subsequent cutting. After that, the material blocking member can start to cooperate with the material pushing member to clamp the remaining building blocks.

[0023] Furthermore, the material blocking member includes a material blocking block and a clamping block. The material blocking block is provided with a chute with an opening facing right. The clamping block is slidably inserted into the chute from left to right, and is connected with a first elastic member between the clamping block and the material blocking block. The first elastic member applies an elastic force to the right to the clamping block so that the clamping block can extend to the outside of the material blocking block. The right side of the clamping block is provided with a pushing inclined surface that slopes downward from right to left.

[0024] With the above technical solution, when the material blocking block moves upward above the workbench, it drives the clamping block to move upward above the workbench. Under the action of the first elastic member, the clamping block pops out to the right and extends to the right side of the material blocking block, so as to press tightly against the building block on the right, better clamping the building block and preventing a gap between the material blocking member and the building block, which may cause the building block to shake during cutting. During the process of the material blocking block moving downward below the workbench, the clamping block is pushed by the workbench through the pushing inclined surface, so as to be retracted into the material blocking block, and the protruding clamping block does not affect the up and down movement of the material blocking block.

[0025] At the same time, if the clamping block is not set, in order to make the material blocking block have a clamping effect on the fed building block, it is necessary to set the left end face of the building block to be aligned with the right end face of the material blocking block after each feed. However, due to errors, there may be a problem that there is a small gap between the left end face of the building block and the right end face of the material blocking block, or the left end face of the building block slightly crosses the right end face of the material blocking block to the left, and it is impossible to ensure that the left end face of the building block is completely fitted with the right end face of the material blocking block. This will lead to problems such as the building block not being completely clamped by the material blocking block and the material blocking block being blocked by the building block when it extends upward. After setting the clamping block, it can be set to keep a certain interval between the building block and the right end face of the material blocking block after each feed. After the clamping block pops out, it presses tightly against the building block, so that the material blocking member cooperates with the material pushing member to clamp the building block, and a series of problems caused by errors can be avoided.

[0026] Further, a guiding groove with a groove depth extending in the left - right direction is provided on the frame. A guiding rod extending left - right is connected to the material blocking block, and one end of the guiding rod is inserted into the guiding groove. The guiding groove includes an inclined groove section 1, a horizontal groove section 1, an inclined groove section 2, and a horizontal groove section 2 that are sequentially connected end - to - end from back to front. The inclined groove section 1 slopes downward from back to front, and the inclined groove section 2 slopes upward from back to front. After the workbench moves the cut block backward to the rear of the cutting mechanism, the guiding rod is driven by the workbench to move along the inclined groove section 1 from front to back, so as to drive the material blocking block to move downward below the top surface of the workbench to create a feeding space. After the gear moves backward and disengages from the rack, the guiding rod is driven by the workbench to move along the inclined groove section 1 from front to back, so as to drive the material blocking block to move upward to support the cut block sample.

[0027] With the above - mentioned technical solution, a guiding rod is connected to the material blocking block, and the guiding rod is inserted into the guiding groove. The guiding rod can move upward or downward at a set moment under the guidance of the guiding groove, so as to realize that the material blocking part extends upward to clamp the block before the block is cut, moves downward below the workbench after the block cutting is completed and moves to the rear of the cutting mechanism to create a space for the block to feed leftward, and extends upward again to clamp a new block after the block feeds. By setting the guiding groove and making the material blocking block cooperate with the guiding groove through the guiding rod, it can drive the material blocking part to move to the corresponding state at a set moment during the process of pushing the workbench back and forth. The structure is simple, and there is no need to separately set a driving part for controlling the up - and - down movement of the material blocking part, which can save power costs.

[0028] Further, a roller with an axis extending left - right is connected to the end of the guiding rod, and the roller is inserted into the guiding groove.

[0029] With the above - mentioned technical solution, the roller changes the sliding friction between the guiding rod and the guiding groove into rolling friction, which is more labor - saving.

[0030] Further, a positioning plate is connected to the rear side of the workbench. The positioning plate has a positioning surface extending vertically, and the positioning surface is used to abut against the rear side wall surface of the block to position the block.

[0031] Further, a second dust - proof cover is connected to the right side of the material pushing part, and the second dust - proof cover covers the outside of the second transmission component. A third dust - proof cover is installed on the workbench, and the third dust - proof cover covers the outside of the third transmission component. A first dust - proof cover is installed on the frame, and the first dust - proof cover covers the outside of the first transmission component.

[0032] With the above - mentioned technical solution, a large amount of cutting chips and dust will be generated during the cutting process. Setting dust - proof covers to protect these transmission parts can prevent the transmission structure from being affected by dust and extend the service life of the transmission structure.

[0033] Further, a handle for holding to push the workbench back and forth is connected to the rear end of the workbench.

[0034] With the above technical solution, it is convenient to hold the handle to push the workbench to move back and forth.

[0035] The beneficial effects of a block cutting device provided by the present invention are as follows: during the process of cutting a block into a specimen, the operator does not need to manually push the block to achieve the feeding of the block. Just push the workbench backward continuously after the cutting is completed, and the leftward feeding of the block can be achieved. The operation steps are simpler, the feeding of the block is smoother, the feeding distance is more accurate, and the size of the cut specimen is more accurate. The material blocking member can cooperate with the material pushing member to clamp the block during the cutting process, making the cutting process more stable and preventing the block from deviating during the cutting process. Brief Description of the Drawings

[0036] Figure 1 It is the front view of a block cutting device provided by the present invention;

[0037] Figure 2 It is Figure 1 The enlarged schematic view of the structure at A in

[0038] Figure 3 It is Figure 1 The enlarged schematic view of the structure at B in

[0039] Figure 4 It is the right view of a block cutting device provided by the present invention;

[0040] Figure 5 It is the top view of a block cutting device provided by the present invention;

[0041] Figure 6 It is the three-dimensional structure schematic view of a block cutting device provided by the present invention;

[0042] Figure 7 It is Figure 6 The enlarged schematic view of the structure at C in

[0043] Figure 8 It is the partial three-dimensional structure schematic view of a block cutting device provided by the present invention.

[0044] Explanation of the Reference Numerals:

[0045] 1. Frame; 101. Top plate; 102. First strip-shaped perforation; 2. Slide rail; 3. Strip-shaped fixing block; 301. First inclined groove section; 302. First horizontal groove section; 303. Second inclined groove section; 304. Second horizontal groove section; 4. Workbench; 401. Second strip-shaped perforation; 402. Slide hole for the material blocking member; 5. Positioning plate; 6. Handle; 7. Machine housing; 8. Saw band; 9. Pushing member; 10. Vertical beam; 11. Cross beam; 12. U-shaped seat; 13. Support; 14. Rack; 15. Gear; 16. Input shaft; 17. Driving pulley; 18. Transmission belt; 19. Driven pulley; 20. Nut; 21. Screw; 22. Guide rod; 23. Connecting plate; 24. Material blocking block; 241. Buffer falling material inclined plane; 25. U-shaped bracket; 26. Guide movable rod; 27. Connecting block; 28. Guide rod; 29. Clamping block; 291. Pushing inclined plane; 30. Connecting sleeve; 31. Building block; 32. Crank. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0047] The following is one of the embodiments of a building block cutting device provided by the present invention:

[0048] As Figures 1 - 8 shown, a building block cutting device includes a frame 1, a workbench 4, a cutting mechanism, a feeding mechanism, and a material blocking member.

[0049] As Figure 1 、 Figure 6 shown, the frame 1 is arranged on a horizontal ground. A horizontally arranged top plate 101 is installed on the top of the frame 1, and a first strip-shaped perforation 102 extending forward and backward is provided in the middle of the top plate 101. Above the top plate 101, two slide rails 2 extending forward and backward and arranged at intervals left and right are also fixedly installed, and the two slide rails 2 are respectively arranged on the left and right sides of the first strip-shaped perforation 102.

[0050] As Figure 6 、 Figure 8 shown, a strip-shaped fixing block 3 extending forward and backward is also fixedly installed on the top plate 101. The strip-shaped fixing block 3 is located between the two slide rails 2 and on the left side of the first strip-shaped perforation 102. A guide groove is provided on the right side wall of the strip-shaped fixing block 3. The guide groove includes a first inclined groove section 301, a first horizontal groove section 302, a second inclined groove section 303, and a second horizontal groove section 304 that are sequentially connected end to end from back to front. The first inclined groove section 301 slopes downward from back to front, and the second inclined groove section 303 slopes upward from back to front.

[0051] As shown in Figure 5 and Figure 6 shown, the workbench 4 is slidably mounted on two slide rails 2 in the front - rear direction. A strip - shaped through - hole two 401 extending in the front - rear direction is provided in the middle of the workbench 4, and the strip - shaped through - hole two 401 corresponds to the strip - shaped through - hole one 102 vertically. A handle 6 is connected to the rear end of the workbench 4. Two positioning plates 5 extending in the left - right direction are provided on the workbench 4 on the front side of the handle 6. The two positioning plates 5 are arranged on the left and right sides of the strip - shaped through - hole two 401 respectively. The cross - section of the positioning plate 5 is L - shaped, including a horizontal section and a vertical section connected to the front side of the horizontal section. The front side of the vertical section is a positioning surface for abutting against the rear side wall surface of the building block 31.

[0052] As shown in Figure 1 and Figure 6 and Figure 7 shown, a bracket is fixedly connected to the right side of the bottom of the workbench 4. The bracket includes a vertical beam 10, a cross beam 11, a support 13 and a U - shaped seat 12. The vertical beam 10 is vertically connected to the bottom surface of the workbench 4. There are two cross beams 11. The two cross beams 11 extend in the left - right direction and are arranged at an upper - lower interval. The two cross beams 11 are both fixedly connected to the right side wall surface of the vertical beam 10. The right end of the cross beam 11 extends to the outside of the workbench 4. There are two supports 13. The two supports 13 are both fixedly connected to the top surface of the upper cross beam 11. The two supports 13 are spaced left - right and their tops extend above the workbench 4. The U - shaped seat 12 has an opening facing downwards. The U - shaped seat 12 is fixedly connected to the bottom surface of the lower cross beam 11 and the U - shaped seat 12 is located to the right of the frame 1.

[0053] As shown in Figure 6 shown, a material - blocking member sliding hole 402 penetrating up and down is also provided on the workbench 4. The material - blocking member sliding hole 402 is located on the left side of the strip - shaped through - hole two 401. As shown in Figure 1 and Figure 3 shown, a U - shaped bracket 25 with an opening facing upwards is provided at the position corresponding to the material - blocking member sliding hole 402 on the bottom surface of the workbench 4.

[0054] As shown in Figure 1 and Figure 6 shown, the cutting mechanism is a band - saw type cutting mechanism. The cutting mechanism includes a machine shell 7, a driving wheel, a driven wheel and a saw band 8. The machine shell 7 is installed on the frame 1. The driving wheel and the driven wheel are both rotatably installed in the machine shell 7 around a rotation axis extending in the front - rear direction. The saw band 8 is sleeved outside the driving wheel and the driven wheel. The vertical section on the right side of the saw band 8 passes through the strip - shaped through - hole one 102 and the strip - shaped through - hole two 401 and is located in the middle of the frame 1 in the front - rear direction. The band - saw type cutting mechanism is a prior art, and its structure will not be introduced in detail here.

[0055] As shown in Figure 1 and Figure 6As shown, the feeding mechanism includes a pusher 9, a first transmission component, a second transmission component, a third transmission component, and a one-way component.

[0056] As Figure 6 , Figure 7 shown, the pusher 9 is a vertically arranged flat plate. The bottom surface of the pusher 9 fits against the top surface of the workbench 4 and can slide left and right on the workbench 4. The pusher 9 is blocked by the top surface of the workbench 4 and cannot rotate around the axis extending left and right.

[0057] As Figure 7 shown, the first transmission component includes a rack 14 and a gear 15. The rack 14 extends in the front-rear direction. The rack 14 is fixedly connected to the top of the right side wall of the frame 1 and is located at the rear side of the frame 1. The toothed side of the rack 14 faces downward. The spacing dimension between the rack 14 and the vertical section on the right side of the saw band 8 in the front-rear direction is greater than the width dimension of the cut block 31 in the front-rear direction. The gear 15 is rotatably mounted on the U-shaped seat 12 around the axis extending left and right. The gear 15 is located on the left side of the U-shaped seat 12. During the process of the workbench 4 moving backward, the gear 15 can mesh with the rack 14 and rotate.

[0058] A first dust-proof cover is provided outside the first transmission component. The first dust-proof cover is installed on the top right side wall of the frame 1. The first dust-proof cover is a long strip-shaped structural member extending in the front-rear direction. The cross-section of the first dust-proof cover is U-shaped with the opening facing left. The left end of the dust-proof cover is fixedly connected to the frame 1. Both the gear 15 and the rack 14 are wrapped in the U-shaped inner cavity of the first dust-proof cover. The first dust-proof cover is longer than the rack 14 and can cover the gear 15 along the moving path of the gear 15. A strip-shaped hole extending in the front-rear direction for the input shaft 16 to pass through is provided on the right side wall of the first dust-proof cover. For a clearer display of the structure of the first transmission component, the structure of the first dust-proof cover is not shown in the figure.

[0059] The second transmission component includes a nut 20 and a screw 21. The nut 20 is rotatably mounted on the right-side support 13 around the axis extending left and right, and the nut 20 is relatively fixed in position with the corresponding support 13 in the left-right direction. The screw 21 extends in the left-right direction. The screw 21 is helically inserted into the nut 20 and passes through the left-side support 13. The left end of the screw 21 is connected to the pusher 9. A connecting plate 23 is vertically connected to the right end of the screw 21. A guide rod 22 extending left and right is vertically connected to the left side of the connecting plate 23. The guide rod 22 slides left and right through the two supports 13.

[0060] A dust-proof cover two is provided on the outer side of the second transmission assembly. The dust-proof cover two is a long strip-shaped structural member extending left and right. The cross-section of the dust-proof cover two is U-shaped with the opening facing downwards. The left end of the dust-proof cover two is connected to the pusher 9. The screw 21, the nut 20, the guide rod 22, and the driven pulley 19 are all wrapped in the U-shaped inner cavity of the dust-proof cover two. For a clearer display of the structure of the second transmission assembly, the structure of the dust-proof cover two is not shown in the figure.

[0061] As Figure 1 , Figure 2 , Figure 7 shown, the third transmission assembly includes a driving pulley 17, a driven pulley 19, and a transmission belt 18. The outer diameter of the driving pulley 17 is larger than that of the driven pulley 19. The driving pulley 17 is rotatably installed on the above-mentioned U-shaped seat 12 around a rotation axis extending left and right and is located on the right side of the U-shaped seat 12. The driven pulley 19 is rotatably sleeved outside the screw 21, and there is no screw fit relationship between the driven pulley 19 and the screw 21. The driven pulley 19 is connected to the nut 20 through a connecting sleeve 30, and the driven pulley 19 and the nut 20 can rotate synchronously. The transmission belt 18 is sleeved outside the driving pulley 17 and the driven pulley 19. The driving pulley 17 drives the driven pulley 19 to rotate through the transmission belt 18, thereby driving the nut 20 to rotate. When the nut 20 rotates, it drives the screw 21 to move in the left-right direction.

[0062] A dust-proof cover three is provided on the outer side of the third transmission assembly. The dust-proof cover three is a housing whose shape is adapted to the shapes of the driving pulley 17 and the transmission belt 18. The top end of the dust-proof cover three is sleeved outside the screw 21 and inserted into the inner cavity of the dust-proof cover two. The dust-proof cover three is fixedly connected to the bracket. For a clearer display of the third transmission assembly, the structure of the dust-proof cover three is not shown in the figure.

[0063] As Figure 7 shown, the one-way assembly includes a one-way bearing and an input shaft 16. The input shaft 16 extends in the left-right direction and is rotatably installed through the U-shaped seat 12. Both the left and right ends of the input shaft 16 extend to the outside of the U-shaped seat 12. The above-mentioned gear 15 is sleeved on the left end of the input shaft 16 through a one-way bearing, and the above-mentioned driving pulley 17 is sleeved on the right end of the input shaft 16 in a rotation-stopping manner through a connecting key. During the process of the gear 15 meshing with the rack 14 as the workbench 4 moves backward, the input shaft 16 is driven to rotate through the one-way bearing, thereby driving the driving pulley 17 to rotate. During the process of the gear 15 meshing with the rack 14 as the workbench 4 moves forward, the one-way bearing idles, and the one-way bearing cannot drive the input shaft 16 to rotate, so it cannot drive the driving pulley 17 to rotate. At this time, the gear 15 is disengaged from the third transmission assembly.

[0064] The above-mentioned one-way bearing is used here for one-way power transmission, which is a common application method in the prior art. The structure of the one-way bearing is prior art and will not be introduced in detail here.

[0065] As Figure 3 , Figure 8 shown, the material stop member slides up and down through the material stop slide hole 402 on the above-mentioned workbench 4. The material stop member includes a material stop block 24 and a clamping block 29. A buffer blanking slope 241 is provided at the top of the material stop block 24, and the buffer blanking slope 241 slopes downward from right to left. A chute with an opening facing right is also provided in the material stop block 24. The clamping block 29 is slidably inserted into the chute in the left-right direction. A first elastic member is connected between the clamping block 29 and the left side wall of the chute. The first elastic member is a compression spring that can expand and contract in the left-right direction. A pushing slope 291 that slopes downward from right to left is provided on the right side of the clamping block 29. When the first elastic member is not subjected to an external force, the part of the clamping block 29 with the pushing slope 291 extends to the right side of the material stop block 24. When the material stop block 24 moves upward above the workbench 4, it drives the clamping block 29 to move above the workbench 4, and the clamping block 29 pops out to the right under the action of the first elastic member. During the process of the material stop block 24 moving downward, the clamping block 29 is pushed by the right side wall of the material stop slide hole 402 through the pushing slope 291, and thus is retracted into the inside of the chute.

[0066] As Figure 3 shown, two vertically extending guiding and movable rods 26 are connected to the bottom of the material stop block 24. The two guiding and movable rods 26 slide up and down through the above-mentioned U-shaped bracket 25. The bottom ends of the two guiding and movable rods 26 are connected with a connecting block 27. A guiding rod 28 extending left and right is connected to the left side of the connecting block 27. The left end of the guiding rod 28 is connected with a roller with a rotation axis extending left and right. The left end of the guiding rod 28 is inserted into the guiding groove, and the roller is located in the guiding groove.

[0067] In the above-mentioned guiding groove, the first inclined groove section 301 is located behind the rack 14 in the front-rear direction, and the second inclined groove section 303 is located between the rack 14 and the vertical section on the right side of the saw band 8 in the front-rear direction. After the first cutting of the building block 31 is completed, after the gear 15 moves backward and disengages from the rack 14, the guiding rod 28 starts to move backward along the first inclined groove section 301, and the guiding rod 28 is driven by the first inclined groove section 301 to move upward, thereby driving the material stop member to move upward to push the cut sample to the left side of the material stop member. The second inclined groove section 303 is located in front of the rack 14 in the front-rear direction. After the guiding rod 28 moves from front to back to the rear side of the second inclined groove section 303, the gear 15 starts to engage with the rack 14.

[0068] In order to facilitate the reset of the pusher 9 after the cutting of the building block 31 is completed, as Figure 7 shown, a crank 32 is connected to the driving pulley 17. When the pusher 9 needs to be reset, only need to push the workbench 4 to the position where the gear 15 disengages from the rack 14, and then rotate the crank 32 to drive the driving pulley 17 to rotate in the reverse direction, then the pusher 9 can be driven to move to the right for reset.

[0069] The present invention is mainly used for cutting the plate-shaped block 31 with a relatively thin thickness dimension, and finally cutting the plate-shaped block 31 into strips. When the present invention is in use, at the initial state, the left end of the guide rod 28 is inserted at the top of the first inclined groove section 301, and at this time, the material blocking member extends above the workbench 4. Before starting the cutting, the plate-shaped block 31 to be cut is placed on the workbench 4, and the right side wall surface of the block 31 is abutted against the left side surface of the pusher 9, and the rear side wall surface of the block 31 is abutted against the positioning surface. Then, hold the handle 6 and push the workbench 4 forward. The guide rod 28 moves forward along the guide groove. The guide rod 28 slides forward in the first inclined groove section 301 and the first horizontal groove section 302 in sequence. The material blocking member is driven to move downward below the workbench 4 and continues to remain in this position. The gear 15 is driven to move forward and mesh with the rack 14. Due to the setting of the one-way component, in this process, the gear 15 will not transmit power to the third transmission component.

[0070] The workbench 4 continues to be pushed forward. The guide rod 28 is driven to slide into the second inclined groove section 303. Before the block 31 contacts the saw band 8, the guide rod 28 moves upward along the second inclined groove section 303 and slides into the second horizontal groove section 304. The material blocking member is driven to move upward above the workbench 4. The clamping block 29 pops out to the right under the action of the first elastic member and presses tightly on the block 31. Then, the workbench 4 continues to move forward. The guide rod 28 moves forward along the second horizontal groove section 304. The block 31 moves while being clamped and contacts the saw band 8 for cutting.

[0071] After the first cutting of the block 31 is completed, push the workbench 4 backward to drive the block 31 to move backward away from the saw band 8. After the block 31 is completely separated from the saw band 8, the guide rod 28 slides into the second inclined groove section 303 and drives the material blocking member to move downward below the workbench 4 under the action of the second inclined groove section 303. Then, the gear 15 starts to rotate by meshing with the rack 14. The gear 15 drives the third transmission component to operate. The third transmission component drives the nut 20 to rotate. The nut 20 drives the screw rod 21 to move leftward, so that the pusher 9 pushes the block 31 to move leftward, realizing the feeding of the block 31.

[0072] After the gear 15 moves backward to disengage from the rack 14, the block 31 completes the feeding. At this time, the center of gravity of the cut block specimen located at the leftmost side moves to the left of the highest point of the stop block 24, and the left end face of the remaining uncut block 31 is located on the right side of the stop block 24 and there is a small gap between it and the right end face of the stop block 24. Then, continue to pull the workbench 4 backward, the guide rod 28 slides into the first inclined groove section 301 and slides backward along the first inclined groove section 301, driving the stop member to move upward. The stop member lifts the cut block specimen upward, and the block specimen leaves the top surface of the workbench 4 and slides down along the buffer blanking inclined surface 241 under its own weight to the left side of the stop member. Then, repeat the above actions, push the workbench 4 forward to perform the next cutting.

[0073] The present invention can realize the feeding of the block 31 in the left-right direction by pushing the workbench 4 to move back and forth, the operation process is more convenient, the size of the obtained block specimen is more standard, and the present invention can also clamp the block 31 during the cutting process, making the cutting process more stable.

[0074] In this embodiment, the one-way assembly includes a one-way bearing and an input shaft 16. The gear 15 is sleeved on the input shaft 16 through the one-way bearing, and the driving pulley 17 is rotationally fixed and sleeved on the input shaft 16. In other embodiments, the gear 15 is rotationally fixed and sleeved on the input shaft 16, and the driving pulley 17 is sleeved on the input shaft 16 through the one-way bearing.

[0075] In this embodiment, the third transmission assembly includes a driving pulley 17, a driven pulley 19 and a transmission belt 18. In other embodiments, the third transmission assembly adopts a chain drive structure, including a driving sprocket, a driven sprocket and a chain.

[0076] In this embodiment, the stop member includes a stop block 24 and a clamping block 29. In other embodiments, the stop member only includes the stop block 24, and no chute is provided on the stop block 24.

[0077] In this embodiment, a stop member is provided on the workbench 4. In other embodiments, no stop member is provided on the workbench 4.

Claims

1. A block cutting device, comprising a frame, a workbench and a cutting mechanism, wherein the workbench is installed on the frame in a front-back guiding and sliding manner, and is characterized in that It further includes a feeding mechanism, which includes a pusher, transmission component one, transmission component two, and transmission component three; the pusher is movably installed left and right on the workbench; transmission component one includes a rack and a gear, the rack extends forward and backward and is fixedly installed on the machine frame, the rack is located behind the cutting mechanism, the gear is rotatably installed on the workbench, and the gear is used to mesh with the rack when the cut block moves to the rear of the cutting mechanism and then continues to move backward with the workbench; transmission component two includes a nut and a screw rod, the nut is rotatably installed on the workbench with a fixed left and right position, the screw rod extends left and right and is helically inserted into the nut, the screw rod is non-rotatably connected to the workbench and is connected to the pusher; transmission component three is connected between the nut and the gear, and a one-way component is connected between transmission component three and the gear. The one-way component enables the gear to drive transmission component three to operate when moving backward and meshing with the rack, and enables the gear to disconnect from transmission component three when moving forward and meshing with the rack, so that the gear can only drive the nut to rotate when moving backward, and then drive the screw rod and the pusher to move leftward to achieve feeding; a material blocking member is slidably installed on the workbench in a vertically guiding manner, the material blocking member is located on the left side of the pusher, and a buffer falling material inclined surface that slopes downward from right to left is provided at the top of the material blocking member. The material blocking member is used to move upward above the workbench to cooperate with the pusher to clamp the block when cutting the block, and move downward below the top surface of the workbench when the block is fed leftward. The material blocking member is also used to move upward to support the cut block sample after the center of gravity of the cut block sample moves leftward beyond the highest point of the material blocking member, so that the block sample slides along the buffer falling material inclined surface to the left side of the material blocking member under its own weight; the material blocking member includes a material blocking block and a clamping block. A chute with an opening facing right is provided on the material blocking block, the clamping block is slidably inserted into the chute left and right, and an elastic member one is connected between the clamping block and the material blocking block. The elastic member one applies an elastic force to the right to the clamping block so that the clamping block can extend outside the material blocking block. A pushing inclined surface that slopes downward from right to left is provided on the right side of the clamping block; a guiding groove with a groove depth extending in the left and right direction is provided on the machine frame. A guiding rod extending left and right is connected to the material blocking block, and one end of the guiding rod is inserted into the guiding groove. The guiding groove includes an inclined groove section one, a horizontal groove section one, an inclined groove section two, and a horizontal groove section two that are sequentially connected end to end from back to front. The inclined groove section one slopes downward from back to front, and the inclined groove section two slopes upward from back to front. After the workbench drives the cut block backward to the rear of the cutting mechanism, the guiding rod is driven by the workbench to move along the inclined groove section one from front to back, so as to drive the material blocking block to move downward below the top surface of the workbench to vacate a feeding space. After the gear moves backward and disengages from the rack, the guiding rod is driven by the workbench to move along the inclined groove section one from front to back, so as to drive the material blocking block to move upward to support the cut block sample.

2. The block cutting device according to claim 1, characterized in that, The one-way component includes an input shaft and a one-way bearing. The input shaft is in transmission connection with the power input end of transmission component three, and the gear is sleeved outside the input shaft through the one-way bearing.

3. A block cutting device according to claim 2, characterized in that, The third transmission assembly includes a driving pulley, a driven pulley and a transmission belt. The driving pulley is the power input end of the third transmission assembly. The driving pulley is rotationally fixed and sleeved outside the input shaft. The driven pulley is rotationally fixed to the nut, and the transmission belt is sleeved outside the driving pulley and the driven pulley.

4. A block cutting device according to claim 1, characterized in that, A roller with a left-right extending axis is connected to the end of the guide rod, and the roller is inserted into the guide groove.

5. A block cutting device according to any one of claims 1-3, characterized in that, A positioning plate is connected to the rear side of the workbench. The positioning plate has a vertically extending positioning surface, and the positioning surface is used to abut against the rear side wall surface of the building block to position the building block.

6. A block cutting device according to any one of claims 1-3, characterized in that A second dust cover is connected to the right side of the pusher. The second dust cover covers the outside of the second transmission assembly. A third dust cover is installed on the workbench, and the third dust cover covers the outside of the third transmission assembly. A first dust cover is installed on the frame, and the first dust cover covers the outside of the first transmission assembly.

7. A block cutting device according to any one of claims 1-3, characterized in that, A handle for holding to push the workbench forward and backward is connected to the rear end of the workbench.

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